I know the feeling OP. I'm still on the Moon in Endwalker because the fact that after so much build up the Zodiark "fight" was basically just Fandaniel in cosplay who ended up getting "Snoked" barely half way into Endwalker killed all motivation to continue, never-mind my many other grievances with Endwalker. I especially agree with your disappointment with Garlemald. Ten years of suffering at their hands and I was finally looking forward to a counter invasion and payback. Nope. They destroy themselves off camera and now we have to go help those poor souls, oh, and we better not hurt ANY of their soldiers or else the literal elezen children commanding this operation will frown and clench their fists at us.